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Note 14 - Segment Information - Reconciliation of Total Reportable Segment Adjusted EBITDAR to Operating Income (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Corporate expense |  |  |  |  |  |  |  |  | $ 76,143 | $ 105,139 | $ 104,201
Adjusted EBITDAR |  |  |  |  |  |  |  |  | 609,894 | 896,688 | 681,289
Deferred rent |  |  |  |  |  |  |  |  | 888 | 979 | 1,100
Master lease rent expense |  |  |  |  |  |  |  |  | 101,907 | 97,723 | 20,682
Depreciation and amortization |  |  |  |  |  |  |  |  | 281,031 | 276,569 | 229,979
Share-based compensation expense |  |  |  |  |  |  |  |  | 9,202 | 25,202 | 25,379
Project development, preopening and writedowns |  |  |  |  |  |  |  |  | (661) | 21,728 | 45,698
Impairment of assets |  |  |  |  |  |  |  |  | 174,700 | 0 | 993
Other operating items, net |  |  |  |  |  |  |  |  | 28,564 | 1,919 | 2,174
Total other operating costs and expenses |  |  |  |  |  |  |  |  | 595,631 | 424,120 | 326,005
Operating income | $ 111,299 | $ 127,073 | $ (86,348) | $ (137,761) | $ 114,859 | $ 113,391 | $ 126,692 | $ 117,626 | 14,263 | 472,568 | 355,284
Las Vegas Locals [Member] |  |  |  |  |  |  |  |  |  |  |
Total Reportable Segment Adjusted EBITDAR |  |  |  |  |  |  |  |  | 198,744 | 283,030 | 274,344
Downtown Las Vegas [Member] |  |  |  |  |  |  |  |  |  |  |
Total Reportable Segment Adjusted EBITDAR |  |  |  |  |  |  |  |  | 1,075 | 62,413 | 56,517
Midwest and South [Member] |  |  |  |  |  |  |  |  |  |  |
Total Reportable Segment Adjusted EBITDAR |  |  |  |  |  |  |  |  | 480,446 | 635,182 | 432,366
Corporate Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Corporate expense |  |  |  |  |  |  |  |  | $ (70,371) | $ (83,937) | $ (81,938)

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